Laurie Grossberg, M.D.
Gastroenterology Physician · Boston, MA
Laurie Grossberg, M.D. is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1699069252, issued on Jun 1, 2011. Check the license (Massachusetts 265395, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Laurie Grossberg
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 265395 MA
Self-reported in NPPES; status is on the state search - Practice location
- 330 Brookline Ave # Rabb1, Boston, MA 02215
- Phone
- (617) 667-2802
- Enumerated
- Jun 1, 2011
- Record last updated
- Jan 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (617) 667-5826
- Medicare enrollment
- Enrolled (PECOS I20170512000330); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Verify Laurie Grossberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 265395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average gastroenterology physician in 2024
242 Medicare Part D claims for 108 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf89 claims
- Stelara43 claims
- Humira(Cf) Pen31 claims
- Humira Pen13 claims
- Rinvoq13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $7,233.10
5 payments; by number, the most common kind was travel and lodging; the largest payer was Pfizer Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Laurie Grossberg among 686 gastroenterology physician records in Massachusetts
Laurie Grossberg, M.D. is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 71% of them.
- NPI issued2011 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2004 among the 491 with a school on file
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Boston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Apstein, MDBoston, MA 022151609854603
- Alphonso Brown, MDBoston, MA 022151871579987
- Valerie Byrnes, M.D.Boston, MA 022151467410332
- Catherine Cheney, M.D.Boston, MA 022151710962030
- Zalman Falchuk, MDBoston, MA 022151912996000
- Kenneth Falchuk, M.D.Boston, MA 022151639154305
- Douglas Horst, MDBoston, MA 022151518957224
- John Lamont, MDBoston, MA 022151316903735
Common questions
What is Laurie Grossberg, M.D.'s NPI number?
Laurie Grossberg, M.D.'s National Provider Identifier (NPI) is 1699069252, issued on Jun 1, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Laurie Grossberg, M.D. located?
The NPPES record lists a practice address at 330 Brookline Ave # Rabb1, Boston, MA, 02215. Phone: (617) 667-2802. Providers update this record themselves, so call before visiting.
How can I verify Laurie Grossberg, M.D.'s license?
NPPES lists Massachusetts license number 265395, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Laurie Grossberg, M.D. prescribe under Medicare Part D?
In 2024, Laurie Grossberg, M.D. had 242 Medicare Part D claims for 108 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.